Investigation of the effect of camshaft profiles designed with the circular arc curve method for a common rail dual fuel engine on mechanical vibration and noise emissions

Year 2023, Volume: 7 Issue: 4, 269 - 278, 31.12.2023

Halil Erdi Gülcan Nurullah Gültekin Murat Ciniviz

https://doi.org/10.30939/ijastech..1300577

Abstract

In this study, the design and manufacturing of cam profiles with different valve lifts were carried out using the geometric spring curve method for a single-cylinder, four-stroke common rail diesel engine. Subsequently, the impact of the designed cam profiles on vibration and noise emissions in conventional diesel combustion was examined. The effects of the cam profiles obtained using the circular spring curve method and fitted with Fourier series on the tappet's speed, acceleration, and leap were examined, and then the cam profiles to be manufactured were determined. Experimental tests were conducted on vibration and noise emissions using the manufactured cam profiles with pure diesel fuel at five different engine loads and a constant engine speed. When the results are examined, increasing the valve lift amount compared to the original cam resulted in an approximate 24% increase in vibration level, while decreasing the valve lift amount reduced the vibration level by approximately 20%. the effect of cam profile modification on average noise emissions was quite evident.

Keywords

camshaft design, diesel engine, noise emissions, valve lift, vibration

Supporting Institution

Selcuk University BAP/Turkey

Project Number

21406001

Thanks

This study was supported by Selcuk University BAP/TURKEY in frame of the project code of 21406001 as researchers, we thank the Selcuk University BAP/TURKEY.

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